D.C. Code § 18-307: Advancement as satisfaction of devise or bequest.

An advancement or a provision for an advancement to a person is a satisfaction, in whole or in part, of a devise or bequest to that person contained in a previous will if it would be so deemed in case the devisee or legatee were the child of the testator; and, whether he is a child or not, it shall be so deemed where it appears from parol or other evidence to be so intended.